wm9715l Wolfson Microelectronics plc, wm9715l Datasheet - Page 68

• Manufacturer Part Number: wm9715l
• Description: Ac?97 Audio And Touchpanel Codec
• Manufacturer: Wolfson Microelectronics plc

WM9715L
w
3Ah
4Ch
4Eh
50h
52h
54h
ADDR
ADDR
ADDR
Register 3Ah controls the SPDIF output.
Register 4Ch (together with register 56h) controls the outputs ADCIRQ, PENDOWN, GENIRQ and SPDIF_OUT.
Register 4Eh to 54h control the processing of GENIRQ interrupt signals.
REG
REG
REG
15
14
13:12
11
10:4
3
2
1
0
5
4
3
2
15
14
13
12
11
BIT
BIT
BIT
V
DRS
SPSR
L
CC
PRE
COPY
AUDIB
PRO
GC5
GC4
GC3
GC2
LABEL
LABEL
please
refer to
the
register
map
LABEL
1 (off)
1 (off)
1 (off)
1 (off)
DEFAULT
all 1
all 0 (not sticky)
all 0 (OFF)
= status of
internal interrupt
signal
0
0
10
0
0000000
0
0
0
0
DEFAULT
DEFAULT
‘0’ enables the SPDIF_OUT pin (note that GE5 in register 56h
must also be set to 0, and SEN in register 2Ah to 1)
‘0’ enables the ADCIRQ pin (note that GE4 in register 4Ch must
also be set to 0).
‘0’ enables the PENDOWN pin (note that GE3 in register 4Ch
must also be set to 0).
‘0’ enables the GENIRQ pin (note that GE2 in register 4Ch must
also be set to 0).
Validity bit; ‘0’ indicates frame valid, ‘1’ indicates frame not
valid
Indicates that the WM9715L does not support double rate
SPDIF output (read-only)
Indicates that the WM9715L only supports 48kHz
sampling on the SPDIF output (read-only)
Generation level; programmed as required by user
Category code; programmed as required by user
Pre-emphasis; ‘0’ indicates no pre-emphasis, ‘1’ indicates
50/15us pre-emphasis
Copyright; ‘0’ indicates copyright is not asserted, ‘1’
indicates copyright
Non-audio; ‘0’ indicates data is PCM, ‘1’ indicates non-
PCM format (e.g. DD or DTS)
Professional; ‘0’ indicates consumer, ‘1’ indicates
professional
Controls interrupt polarity
Enables wake-up for each interrupt
Interrupt status (read from inputs, write ‘0’ to clear sticky bits)
Controls Comparator 1 interrupts
Controls Comparator 2 interrupts
Controls Pen-Down interrupts
Controls AUXADC data available interrupts
Controls Thermal sensor interrupts
Makes interrupt bits sticky
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD Rev 4.0 December 2007
Production Data
Digital Audio
(SPDIF)
Output
Interrupt
Control
REFER TO
REFER TO
REFER TO
Interrupt
Control
68